VST 3 plugins no have an external input! 🤌

Today, some VST3 plugins have stopped recognizing the sidechain input! This applies to the built-in P1 equalizer (Pultec) and the UA Pultec!
I cleared the cache, re-registered the plugins, restarted the software, and opened old projects where I had used them. But it still doesn’t work.
What do you recommend?


Are you 100% sure you used sidechain on the P1A? I check my Steinberg and UAD plugins, and neither shows it. I don’t remember it ever being there–but I usually use Frequency 2 for EQ sidechains. I also check some videos to see if it was there…

UAD Pultec do not have sidechain as far as I know.